Daniel Heuclin / Western hognose snake (Heterodon nasicus) South East Arizona, USA, September 2013.

Ernie Janes / Western Hog-nosed Snake (Heterodon nasicus) captive species from North America and Mexico

Daniel Heuclin / Western Hognose Snake (Heterodon nasicus) tasting air with its tongue. Endemic to western North America and Mexico.

Daniel Heuclin / Western Hognose Snake (Heterodon nasicus), studio shot against white background. Endemic to western North America and Mexico.

Barry Mansell / Western Hog-nosed Snake (Heterodon nasicus) lying in sand, Arizona, USA

Michael D. Kern / Western hognose snake (Heterodon nasicus nasicus) albino, captive, from USA

Shattil & Rozinski / Western hognose snake {Heterodon nasicus} feigning death to avoid predation, Colorado, USA

Shattil & Rozinski / Western hognose snake {Heterodon nasicus} Colorado, USA

Michael D. Kern / Western hognose snake {Heterodon nasicus} upside down with mouth open feigning death, captive, from western USA

Michael D. Kern / Western hognose snake {Heterodon nasicus} captive, from western USA

Michael D. Kern / Western hognose snake {Heterodon nasicus} captive, from western USA

Barry Mansell / Western Hog Nose Snake (Heterodon nasicus) on ground, Arizona, USA